TWI746573B - Method, network device, and terminal device for transmitting signals - Google Patents

Abstract

The embodiments of the present disclosure provide a method, network device, and terminal device for transmitting signals. The method includes transmitting by a network device, a plurality of synchronous signals within a signal synchronization cycle, detecting by a terminal device, the plurality of synchronous signals transmitted by the network device within the signal synchronization cycle, transmitting by the network device, broadcast channels or other signals corresponding to the plurality of synchronous signals, and detecting by the terminal device, according to the detected multiple synchronous signals, the broadcast channels corresponding to the plurality of synchronous signals and transmitted by the network device, or other signals transmitted by the network device. The method, network device, and terminal device of the embodiments of the present disclosure can improve the performance of signal detection of the terminal device.

Description

Signal transmission method, network equipment and terminal equipment

The present invention relates to the field of wireless communication, and particularly relates to a method for transmitting signals, network equipment and terminal equipment.

In 5G technology, it is necessary to support data transmission in a high frequency band (the center frequency is above 6 GHz, for example, 28 GHz) to meet the 5G transmission rate requirements. When data is transmitted in a high frequency band, in order to achieve a higher transmission rate, it is necessary to adopt Multiple-Input Multiple-Output (MIMO) antenna technology. The use of MIMO technology at high frequencies places high requirements on the radio frequency components of the antenna, and the hardware cost of the antenna, such as the number of analog/digital (A/D) or digital-to-analog (D/A) converters, will also greatly increase. In order to reduce costs, analog beamforming is usually used in high frequency bands to reduce the number of transceiver radio units. The so-called analog beamforming technology refers to the technology of beamforming the analog signal through a phase shifter after D/A conversion. The analog beamforming technology is not only used in the transmission of data channels, but also in the cell access process.

In the Long Term Evolution (LTE) system, the terminal device to access the cell first needs to detect the synchronization signal from the cell and the corresponding broadcast channel. In this cell access method, the terminal device detects the synchronization signal The performance is poor, which will affect the detection performance of subsequent corresponding broadcast channels or other signals.

The embodiment of the present invention provides a method and a device for transmitting a signal, which can improve the performance of a terminal device to detect a signal.

The first aspect of the present invention provides a signal transmission method, including: a terminal device detects multiple synchronization signals sent by a network device in a synchronization signal cycle; the terminal device detects the multiple synchronization signals based on the detected multiple synchronization signals The broadcast channel sent by the network device and corresponding to the multiple synchronization signals, or other signals other than the corresponding broadcast channel sent by the network device after the multiple synchronization signals are detected.

In the embodiment of the present invention, since the terminal device detects multiple synchronization signals sent by the network device in a synchronization signal period, the terminal device can detect subsequent transmissions by the network device based on multiple synchronization signals in a synchronization signal period. The signal or broadcast channel can shorten the time for the terminal device to detect the subsequent signal or broadcast channel, thereby improving the performance of the terminal device to detect the signal.

In a possible implementation manner, the multiple synchronization signals use the same sequence.

In the embodiment of the present invention, since the multiple synchronization signals detected by the terminal equipment adopt the same sequence, that is, multiple synchronization signals are repeatedly sent, the terminal equipment can improve the accuracy of synchronization signal detection based on the detection of multiple synchronization signals carrying the same message. Spend.

In a possible implementation manner, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length.

In the embodiment of the present invention, since the transmission parameters of the multiple synchronization signals sent by the network device are different, the terminal device can better receive the multiple different signals.

In a possible implementation manner, the terminal device detecting multiple synchronization signals sent by the network device in a synchronization signal period includes: the terminal device transmits according to the pre-arranged transmission of the network device and the terminal device Parameters, or detecting the multiple synchronization signals according to a transmission parameter determined based on a message carried by a part of the synchronization signals among the multiple synchronization signals.

In a possible implementation manner, the terminal device detects the broadcast channel corresponding to the multiple synchronization signals sent by the network device according to the detected multiple synchronization signals, including: the terminal device Determine at least one of the following transmission parameters of the corresponding broadcast channel based on the information carried by the detected multiple synchronization signals: frequency domain resource, time domain resource, message scrambling method, subcarrier interval, or data transmission time length ; The terminal device detects the corresponding broadcast channel according to the determined transmission parameter.

In a possible implementation, the terminal device detecting multiple synchronization signals sent by the network device in one synchronization signal period includes: the terminal device uses different beamforming reception weights to detect the multiple synchronization signals. Synchronization signal; the terminal device detects the network device based on the multiple synchronization signals detected The broadcast channel corresponding to the multiple synchronization signals or detecting other signals sent by the network device other than the corresponding broadcast channel includes: the terminal device detects the multiple synchronization signals according to The beamforming receiving weight used by the first synchronization signal in the signal determines the first beamforming receiving weight of the terminal device; the terminal device uses the first beamforming receiving weight to detect the Other signals or detect the corresponding broadcast channel

In the embodiment of the present invention, the terminal device uses different beamforming reception weights to receive multiple synchronization signals, so that the terminal device can receive a beamforming reception corresponding to a synchronization signal that meets the requirements within a synchronization signal cycle. Weight, which determines the beamforming reception weight used to detect the signal subsequently sent by the network device or the broadcast channel, that is, the terminal device can shorten the beamforming weight that it determines to receive the signal or broadcast channel subsequently sent by the network device Value of the trip.

In a possible implementation manner, the first synchronization signal is a synchronization signal with the best reception quality among the plurality of synchronization signals detected by the terminal device.

In the embodiment of the present invention, the terminal device uses the beamforming weight corresponding to the synchronization signal with the best reception quality as the beamforming weight of the signal subsequently sent by the receiving network device or the broadcast channel, which can improve the reception of the subsequently sent signal or The performance of the broadcast channel.

In a possible implementation, the method further includes: the terminal device determines, according to the first beamforming reception weight, the first beamforming that the terminal device uses to send a signal to the network device Launch weight.

In a possible implementation, the terminal device determining the first beamforming transmission weight used by the terminal device to send a signal to the network device according to the first beamforming reception weight includes: When the number of radio frequency units used by the terminal device to receive the synchronization signal is equal to the number of radio frequency units used by the terminal device to send signals to the network device, the terminal device sets the first beam The shape receiving weight is determined as the first beamforming transmission weight.

In a possible implementation, the terminal device determining the first beamforming transmission weight used by the terminal device to send a signal to the network device according to the first beamforming reception weight includes: When the number of radio frequency units used by the terminal equipment to receive the synchronization signal is not equal to the number of radio frequency units used by the terminal equipment to send signals to the network equipment, the terminal equipment The angle corresponding to the shaped receiving weight and the number of radio frequency units used by the terminal device to send a signal to the network device determine the first beam shaped transmitting weight.

In a possible implementation manner, the corresponding broadcast channels are multiple broadcast channels carrying the same information.

In a possible implementation manner, the corresponding broadcast channels detected by the terminal device are multiple broadcast channels, and at least one of the following transmission parameters of the multiple broadcast channels is different: Hybrid Automatic Repeat Request (Hybrid Automatic Repeat Request). Repeat reQuest (HARQ) redundancy version, frequency domain resources, time domain resources, message scrambling method, subcarrier interval or data transmission time length.

In a possible implementation, the terminal device detects When the corresponding broadcast channel is multiple broadcast channels, the method further includes: the terminal device sends a broadcast channel indication message to the network device, and the broadcast channel indication message is used to indicate the multiple broadcast channels The first broadcast channel in.

In the embodiment of the present invention, the terminal device sends an instruction message indicating a certain broadcast channel to the network device, so that the network device can determine the sending parameters that the network device can use when subsequently sending the broadcast channel according to the instruction message.

In a possible implementation manner, the first broadcast channel is the broadcast channel with the best reception quality among the multiple broadcast channels received by the terminal device using the first beamforming reception weight.

In a possible implementation, the terminal device sending a broadcast channel instruction message to the network device includes: the terminal device sends the broadcast channel instruction message to the network device through a control channel or a random access channel .

In a possible implementation manner, the physical resource used by the synchronization signal sent multiple times and the physical resource used by the corresponding broadcast channel have a predefined mapping relationship.

In a possible implementation manner, the corresponding broadcast channel is a physical broadcast channel used to transmit Management Information Byte (MIB).

A second aspect of the present invention provides a signal transmission method, including: a network device sends a plurality of synchronization signals in a synchronization signal cycle; the network device sends a broadcast channel signal corresponding to the plurality of synchronization signals or sends In addition to Other signals other than the corresponding broadcast channel.

In the embodiment of the present invention, the network device sends multiple synchronization signals in one synchronization signal period, so that the terminal device can detect the subsequent signals or broadcast channels sent by the network device based on the multiple synchronization signals in one synchronization signal period, so that Shorten the time for terminal equipment to detect signals or broadcast channels, thereby improving the performance of terminal equipment to detect signals.

In a possible implementation manner, the multiple synchronization signals use the same sequence.

In a possible implementation manner, the network device sending multiple synchronization signals in a synchronization signal period includes: the network device uses the same beamforming transmission weights and sending signals in a synchronization signal period. Multiple synchronization signals.

In the embodiment of the present invention, the multiple synchronization signals sent by the network equipment in a synchronization signal period use the same beamforming transmission weight, so that the terminal equipment can better detect subsequent signals or broadcasts based on the multiple synchronization signals. Channel.

In a possible implementation manner, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length.

In a possible implementation, the transmission parameters of the multiple synchronization signals are the transmission parameters agreed by the network device and the terminal device in advance, or the transmission parameters of the multiple synchronization signals are the transmission parameters of the network device according to the Multiple simultaneous messages The transmission parameters determined by the message carried by part of the synchronization signal in the signal.

In a possible implementation, at least one of the following transmission parameters of the corresponding broadcast channel is determined by the network device according to the information carried by the multiple synchronization signals: frequency domain resources, time domain resources, and message scrambling Method, subcarrier interval or length of data transmission time; the network device sending the broadcast channel corresponding to the multiple synchronization signals after sending the multiple synchronization signals includes: the network device is sending the multiple synchronization signals After the signal is sent, the corresponding broadcast channel is sent according to the determined transmission parameter.

In a possible implementation manner, after the network device sends the multiple synchronization signals, sending a broadcast channel corresponding to the multiple synchronization signals includes: the network device is sending the multiple synchronization signals Then, multiple broadcast channels corresponding to the multiple synchronization signals are sent, wherein the multiple broadcast channels carry the same message.

In a possible implementation manner, after the network device sends the multiple synchronization signals, sending multiple broadcast channels corresponding to the multiple synchronization signals includes: the network device is sending the multiple After the synchronization signal is synchronized, different beamforming transmission weights are used to transmit multiple broadcast channels corresponding to the multiple synchronization signals.

In a possible implementation, the corresponding broadcast channels are multiple broadcast channels, and at least one of the following transmission parameters of the multiple broadcast channels is different: HARQ redundancy version, frequency domain resources, time domain resources, message plus Scrambling method, sub-carrier spacing or data transmission time length.

In a possible implementation, when the corresponding broadcast channel is multiple broadcast channels, the method further includes: the network device receives a broadcast channel indication message sent by the terminal device, the broadcast channel indication message Used to indicate the first broadcast channel of the plurality of broadcast channels.

In a possible implementation, the network device receiving the broadcast channel indication message sent by the terminal device includes: the network device receiving the broadcast channel sent by the terminal device through a control channel or a random access channel Instructions message.

In a possible implementation manner, the physical resource used by the synchronization signal sent multiple times and the physical resource used by the corresponding broadcast channel have a predefined mapping relationship.

In a possible implementation manner, the method further includes: the network device determines the first broadcast channel used by the network device to transmit the broadcast channel after the beamforming transmission weight is used to transmit the first broadcast channel. A beamforming transmission weight.

In a possible implementation manner, the network device determines the first beamforming transmission weight used by the network device to send other signals according to the beamforming transmission weight used to transmit the first broadcast channel , Including: the network device determines the beamforming transmission weight used to transmit the first broadcast channel as the first beamforming transmission weight.

In a possible implementation, the method further includes: the network device determines that the network device uses the transmission weight according to the first beamforming transmission weight. The beamforming reception weight of the received signal.

In a possible implementation manner, the network device determining the beamforming reception weight used by the network device to receive the signal according to the first beamforming transmission weight includes: the network device When the number of radio frequency units used to transmit the first broadcast channel is equal to the number of radio frequency units used by the network device to receive signals, the first beamforming transmission weight is determined to be the beamforming Receive weight.

In a possible implementation manner, the network device determining the beamforming reception weight used by the network device to receive the signal according to the first beamforming transmission weight includes: the network device When the number of radio frequency units used to transmit the first broadcast channel is not equal to the number of radio frequency units used by the network device to receive signals, the angle corresponding to the first beamforming transmission weight is compared with the The number of radio frequency units used to receive the signal determines the beamforming reception weight.

In a possible implementation manner, the corresponding broadcast channel is a physical broadcast channel used to transmit MIB.

The third aspect of the present invention provides a terminal device, which can be used to execute each process performed by the terminal device in the method for transmitting signals in the foregoing first aspect and various implementation manners. The terminal equipment includes: a first detection module for detecting multiple synchronization signals sent by a network device in a synchronization signal period; a second detection module for detecting multiple synchronization signals based on the detected multiple synchronization signals The signal sent by the network device after the plurality of synchronization signals, or the broadcast channel corresponding to the plurality of synchronization signals sent by the network device is detected.

The fourth aspect of the present invention provides a network device, which can be used to execute each process performed by the network device in the method for transmitting signals in the foregoing second aspect and various implementation manners. The network equipment includes: a first sending module for sending multiple synchronization signals in one synchronization signal cycle; a second sending module for sending other signals after sending the multiple synchronization signals, or sending and The broadcast channel corresponding to the multiple synchronization signals.

A fifth aspect of the present invention provides a terminal device, including a processor, a storage, a receiver, and a transmitter, the storage is used for storing program codes, and the processor is used for executing the program codes in the storage. When the program code is executed, the processor invokes the receiver and transmitter to implement the method of the first aspect.

A sixth aspect of the present invention provides a network device, including a processor, a storage, a receiver, and a transmitter. The storage is used to store program codes, and the processor is used to execute the program codes in the storage. When the program code is executed, the processor invokes the receiver and transmitter to implement the method of the second aspect.

The seventh aspect of the present invention provides a system chip, including: an input port, an output port, at least one processor, and a memory, the processor is used to execute the program code in the memory, when the program code is When executed, the processor may implement the various processes executed by the terminal device in the method for transmitting signals in the foregoing first aspect and various implementation manners.

The eighth aspect of the present invention provides a system chip, including: an input port, an output port, at least one processor, and a memory, the processor is used to execute the program code in the memory, when the program code is When executed, said place The processor can implement each process performed by the network device in the method for transmitting signals in the foregoing second aspect and various implementation manners.

A ninth aspect of the present invention provides a computer-readable storage medium, the computer-readable storage medium stores a program, and the program enables a terminal device to execute the above-mentioned first aspect, and any one of its various implementations is used to transmit signals Methods.

A tenth aspect of the present invention provides a computer-readable storage medium, the computer-readable storage medium stores a program that enables a network device to execute the second aspect described above, and any one of its various implementations for transmission Signal method.

10‧‧‧Base station

20‧‧‧Terminal equipment

S210, S220‧‧‧Block

S310, S320‧‧‧Block

800‧‧‧Network Equipment

810‧‧‧First sending module

820‧‧‧Second sending module

900‧‧‧Terminal equipment

910‧‧‧First detection module

920‧‧‧Second Inspection Module

1000‧‧‧Network Equipment

1010、1110‧‧‧Storage

1020、1120‧‧‧Processor

1030、1130‧‧‧Receiver

1040、1140‧‧‧Transmitter

1100‧‧‧Terminal equipment

1200, 1300‧‧‧system chip

1210, 1310‧‧‧Input port

1220, 1320‧‧‧Output port

1230, 1330‧‧‧Processor

1240、1340‧‧‧Storage

1250、1350‧‧‧Bus

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings that need to be used in the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those with ordinary knowledge in the technical field, they can also obtain other schemas based on these schemas without paying creative work.

Figure 1 shows a schematic diagram of an application scenario of an embodiment of the present invention.

Figure 2 shows a schematic flowchart of a signal transmission method according to an embodiment of the present invention.

Figure 3 shows a schematic flowchart of a signal transmission method according to an embodiment of the present invention.

Figure 4 shows a schematic diagram of a signal transmission method according to an embodiment of the present invention.

Figure 5 shows a schematic diagram of a signal transmission method according to an embodiment of the present invention.

Figure 6 shows a schematic diagram of a signal transmission method according to an embodiment of the present invention.

Figure 7 shows a schematic diagram of a signal transmission method according to an embodiment of the present invention.

Figure 8 shows a schematic structural diagram of a network device according to an embodiment of the present invention.

Figure 9 shows a schematic structural diagram of a terminal device according to an embodiment of the present invention.

Figure 10 shows a schematic structural diagram of a network device according to an embodiment of the present invention.

Figure 11 shows a schematic structural diagram of a terminal device according to an embodiment of the present invention.

Figure 12 shows a schematic structural diagram of a system chip according to an embodiment of the present invention.

Fig. 13 shows a schematic structural diagram of a system chip according to an embodiment of the present invention.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, “CDMA” for short) ) System, Wideband Code Division Multiple Access (“WCDMA”) system, General Packet Radio Service (“GPRS”) system, Long Term Evolution (“LTE”) ) System, Universal Mobile Telecommunication System (Universal Mobile Telecommunication System, referred to as "UMTS"), and other current communication systems, especially for future 5G systems.

The terminal equipment in the embodiments of the present invention may also refer to user equipment (User Equipment, "UE" for short), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, User terminal, terminal, wireless communication equipment, user agent or user device. The access terminal can be a cellular phone, a wireless phone, a Session Initiation Protocol ("SIP") phone, a wireless local loop (Wireless Local Loop, "WLL") station, and a personal digital assistant (Personal Digital Assistant, (Referred to as "PDA"), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of public land mobile communication networks (Public Land Mobile Network, referred to as "PLMN") terminal equipment, etc.

The network device in the embodiment of the present invention may be a device used to communicate with terminal devices. The network device may be a base station (Base Transceiver Station, "BTS for short) in GSM or CDMA, or it may be in a WCDMA system. The base station (NodeB, "NB") in the LTE system can also be an evolved base station (Evolutional NodeB, "eNB or eNodeB") in the LTE system, or it can be a Cloud Radio Access Network (Cloud Radio Access Network, (Referred to as "CRAN") in the wireless controller scenario, or the network equipment can be relay stations, access points, in-vehicle equipment, wearable devices, and network equipment in the future 5G network or the future evolution of the PLMN network Network equipment, etc. The following describes a specific example in which a base station is a network device.

Figure 1 is a schematic diagram of an application scenario of the present invention. The communication system in Figure 1 may include a base station 10 and a terminal device 20. The base station 10 is used to provide communication services for the terminal device 20 and access the core network. The terminal device 20 accesses the network by searching for synchronization signals, broadcast signals, etc. sent by the base station 10 to communicate with the network. The arrows shown in Figure 1 may indicate uplink/downlink transmission through the cellular link between the terminal device 20 and the base station 10.

Figure 2 shows a schematic flowchart of a signal transmission method according to an embodiment of the present invention. The terminal device in this method can be the terminal device 20 in Figure 1, and the network device in this method can be the base station 10 in Figure 1. It should be understood that FIG. 2 shows the steps or operations of the signal transmission method, but these steps or operations are only examples, and the embodiment of the present invention may also perform other operations or variations of the operations in FIG. 2.

In block S210, the network device sends multiple synchronization signals in one synchronization signal cycle.

In block S220, after sending the plurality of synchronization signals, the network device transmits a broadcast channel corresponding to the plurality of synchronization signals, or transmits other signals other than the corresponding broadcast channel.

Correspondingly, a schematic flowchart of a signal transmission method executed by a terminal device in an embodiment of the present invention is shown in FIG. 3. It should be understood that FIG. 3 shows the steps or operations of the signal transmission method, but these steps or operations are only examples, and the embodiment of the present invention may also perform other operations or variations of the operations in FIG. 3.

Block S310, the terminal device detects that the network device is in a synchronization signal Multiple synchronization signals sent in a cycle.

In block S320, the terminal device detects the broadcast channel sent by the network device, corresponding to the multiple sync signals, or detects other signals other than the broadcast channel sent by the network device based on the plurality of synchronization signals detected .

In the embodiment of the present invention, the network device sends multiple synchronization signals in one synchronization signal cycle, and the terminal device performs detection based on the multiple synchronization signals, which can improve the detection performance of the synchronization signals. Since the corresponding broadcast channel needs to be detected based on the information carried by the synchronization signal, the detection performance of the broadcast channel can also be improved.

In the embodiment of the present invention, the synchronization signal (Synchronous Signal, SS) may be a primary synchronization signal (Primary Synchronous Signal, PSS) or a secondary synchronization signal (Secondary Synchronous Signal, SSS), or may be composed of the primary synchronization signal and Synchronous signal composed of sub-synchronous signals.

In the embodiment of the present invention, the multiple synchronization signals may adopt the same sequence, that is, the multiple synchronization signals are the same signals that are repeatedly sent. These multiple synchronization signals can be obtained by using sequences such as ZC (Zadoff-Chu) sequence or pseudo-random sequence.

In the embodiment of the present invention, the signal sent by the network device after the multiple synchronization signals may be other types of synchronization signals, pilot signals, or data signals, etc., which is not limited by the present invention.

In the embodiment of the present invention, the synchronization signal sent by the network device and the physical resource used by the corresponding broadcast channel may adopt a predefined correspondence. For example, the synchronization signal and the corresponding broadcast channel are transmitted on a predetermined fixed time-frequency resource, or the synchronization signal and the time-domain resource of the corresponding broadcast channel are transmitted at a fixed interval time unit.

In the embodiment of the present invention, a method for determining the broadcast channel corresponding to the synchronization signal is to use the identification (ID) carried by the synchronization signal to determine the transmission format of the broadcast channel, for example, to determine the scrambling of the broadcast channel. The ID carried by the synchronization signal may be an ID used to identify the network, such as a cell ID, a hypercell ID, a system ID, and so on.

In the embodiment of the present invention, the synchronization signal sent by the network device multiple times in a synchronization signal period may adopt different transmission parameters. The transmission parameters mentioned here may include at least one of the following parameters: frequency domain resources, such as physical resource block (Physical Resource Block, PRB), sub-carriers, sub-bands, or a collection of more than one resource, or they may be used for Determine the frequency hopping pattern of frequency domain resources; Time domain resources, such as subframes, symbols or other defined transmission time units, can also be a collection of the above resources, or used to determine the frequency hopping pattern of time domain resources; Subcarrier spacing; The length of the data transmission time, such as the duration of time, etc.

The transmission parameters of the multiple synchronization signals may be pre-appointed by the network device and the terminal device, or carried in part of the synchronization signals of the multiple synchronization signals.

If the transmission parameters of the multiple synchronization signals are pre-appointed by the network equipment and the terminal device, the terminal device detects the multiple synchronization signals according to the agreed transmission parameters; if the transmission parameters of the multiple synchronization signals are carried in the multiple synchronization signals In the part of the synchronization signal of the signal, after the terminal device detects the synchronization signal carrying the transmission parameter, it detects the synchronization signal based on the transmission parameter carried by this part of the synchronization signal. Other synchronization signals. For example, the terminal device can determine the transmission parameters of other synchronization signals according to the network side ID carried in part of the synchronization signals.

In the embodiment of the present invention, the network device may use the same beamforming weight to transmit the multiple synchronization signals in one synchronization signal period. The beamforming weight may be an analog beamforming weight, a digital beamforming weight, or a hybrid beamforming weight. Here, the hybrid beamforming weight is the combined weight of analog and digital, such as the matrix Kronecker product or product of the analog and digital beam.

More specifically, the beamforming weight used by the network device to send the synchronization signal may be a wide beamforming weight, such as a broadcast beamforming weight. In this way, the synchronization signal can reach a larger coverage area.

In the embodiment of the present invention, a possible implementation manner for a terminal device to detect multiple synchronization signals sent by a network device in a synchronization signal period is: the terminal device adopts different beamforming reception weights, and detects that the network device is in Multiple synchronization signals sent in one synchronization signal cycle. Correspondingly, the terminal equipment detects the signal sent by the network equipment after the multiple synchronization signals or detects the broadcast sent by the network equipment corresponding to the multiple synchronization signals based on the detected multiple synchronization signals The implementation of the frequency channel is as follows: the terminal device determines the first beamforming reception weight of the terminal device according to the beamforming reception weight used for detecting the first synchronization signal among the plurality of synchronization signals; the terminal device uses the first beamforming reception weight. The beamforming reception weight detects the signal sent by the network device after the plurality of synchronization signals, or detects the broadcast channel corresponding to the plurality of synchronization signals sent by the network device.

More specifically, the terminal device can use different beamforming weights (referred to as beamforming reception weights in this article) to detect the synchronization signals repeatedly sent in the synchronization signal period, and use the synchronization signal with the best reception quality. The beamforming reception weight is used as the beamforming reception weight that will be used to detect the corresponding broadcast channel. Among them, the reception quality can be measured by physical quantities such as Reference Signal Receiving Power (RSRP) or received signal strength or correlation peaks.

The terminal device detects the same synchronization signal by using different beamforming receiving weights, and can determine the optimal beamforming receiving weight among these weights. The terminal device uses the optimal beamforming reception weight to receive the broadcast channel or other signals sent subsequently, and can obtain a higher receiving shaping gain, thereby improving the detection performance of the broadcast channel or other signals sent subsequently.

Further, the terminal device can also obtain the beamforming transmission weight used to transmit the signal according to the beamforming reception weight determined by the terminal device for detecting the signal or the broadcast channel.

If the number of radio frequency units used by the terminal equipment to transmit signals is equal to the number of radio frequency units used by the terminal equipment to detect signals or broadcast channels, the beamforming reception weight determined by the terminal equipment for detecting signals or broadcast channels can be directly used as The beamforming reception weight used by the terminal equipment to send the signal.

If the number of radio frequency units used by the terminal equipment to send signals and the number of radio frequency units used by the terminal equipment to detect signals or broadcast channels are not equal, the beamforming reception weight pair determined by the terminal equipment for signal or broadcast channel detection can be used. The corresponding angle and the number of radio frequency units used by the terminal equipment to send signals are obtained to obtain the beamforming transmission weights used by the terminal equipment to send signals.

In the embodiment of the present invention, the network device can periodically send multiple synchronization signals in a synchronization signal period, and then the terminal device can periodically detect these synchronization signals to periodically determine whether they are used to detect subsequent signals or The beamforming reception weights of the broadcast channel and/or the beamforming transmission weights used to transmit the signal are updated, thereby updating these beamforming weights.

The broadcast channel in the embodiment of the present invention may be a physical broadcast channel used to transmit MIB (Management Information Byte). Among them, MIB can include system information such as the transmission system bandwidth.

The transmission parameters of the broadcast channel in the embodiment of the present invention may include at least one of the following parameters: frequency domain resources, such as PRBs, subcarriers, subbands, or a collection of more than one resource, or frequency hopping used to determine frequency domain resources Pattern; time domain resources, such as subframes, symbols, or other defined transmission time units, can also be a collection of the above resources, or a frequency hopping pattern used to determine time domain resources; subcarrier interval; data transmission time length, such as continuous The length of time, etc.

The transmission parameters of the broadcast channel in the embodiment of the present invention may be pre-appointed by the network device and the terminal device, or the terminal device may be determined based on the information carried in the synchronization signal corresponding to the broadcast channel, for example, according to the network ID carried in the synchronization signal Determine the transmission parameters of the broadcast channel.

If the transmission parameters of the broadcast channel are pre-appointed by the network equipment and the terminal equipment, the terminal equipment will detect the broadcast channel according to the agreed transmission parameters; The transmission parameters of each synchronization signal are carried in the synchronization signal. After detecting the synchronization signal carrying the transmission parameters, the terminal device detects the broadcast channel based on the transmission parameters carried by the synchronization signal. For example, the terminal device can determine the transmission parameters of the broadcast channel according to the network side ID carried in the synchronization signal.

In the embodiment of the present invention, the network device may transmit multiple broadcast channels in one broadcast channel transmission period. The transmission period of the broadcast channel can generally be predetermined in advance.

When a network device transmits multiple broadcast channels in one broadcast channel cycle, the multiple broadcast channels may carry the same bit information.

Broadcast channels sent by network equipment multiple times can adopt different transmission parameters. Correspondingly, the terminal device detects these multiple broadcast channels according to different transmission parameters.

In the embodiment of the present invention, the network device may use different beamforming weights to transmit the multiple broadcast channels. The beamforming weight may be an analog beamforming weight, a digital beamforming weight, or a hybrid beamforming weight. For example, the aforementioned different beamforming weights may be a set of Discrete Fourier Transform (DFT) vectors, or may be a set of corresponding vectors of an array.

At this time, the terminal device may report a broadcast channel indication message to the network device based on the measurement results of multiple broadcast channels sent by the network device, where the broadcast channel indication message is used to indicate one broadcast channel of the multiple broadcast channels . Normally, the broadcast channel indication message is used to indicate the broadcast frequency detected by the terminal equipment. Channel, the broadcast channel with the best reception quality. For example, when the terminal device uses the first beamforming reception weight to detect these multiple broadcast channels, it can report the broadcast channel with the best reception quality to the network device, so that the network device can send the broadcast channel according to the beam used to transmit the broadcast channel. The shaping weight determines the beam shaping weight that needs to be used for subsequent transmission of signals or broadcast channels (for the convenience of subsequent description, this beam shaping weight is referred to as the first beam shaping transmission weight).

In the embodiment of the present invention, the broadcast channel indication message may be an index of a broadcast channel in a broadcast channel transmission period. For example, if there are 4 broadcast channels in a broadcast channel transmission period, a 2-bit message can be used to report the broadcast channel indication message.

The terminal device can report the broadcast channel indication message to the network side through the uplink control channel or the uplink random access channel.

After the network device receives the broadcast channel indication message sent by the terminal device, it can determine the beamforming weights used for subsequent transmission signals or broadcast channels according to the broadcast channel indication message.

A possible implementation method for the network equipment to determine the beamforming weights used for subsequent transmission of signals according to the broadcast channel instruction message is: the network equipment uses the beamforming weights used by the broadcast channel indicated by the previously transmitted broadcast channel instruction message The value is used as the beamforming transmission weight used for subsequent signal transmission.

The network equipment transmits the same broadcast channel by using different beamforming emission weights, and then the terminal device feeds back the best broadcast channel, so as to determine the optimal beamforming emission weight among these emission weights. For network equipment The optimal beamforming transmission weight is used to transmit subsequent broadcast channels or other signals, and higher shaping gains can be obtained, thereby improving the detection performance of subsequent broadcast channels or other signals.

Further, the network device may also determine the beamforming weights used for the subsequent received signals based on the determined beamforming weights used for the subsequent sending signals.

One possible implementation is: if the number of radio frequency units used by the network equipment for sending signals is equal to the number of radio frequency units used for receiving signals, the determined beamforming weights used for subsequent transmission signals are directly used as the subsequent reception signals. The beamforming receiving weights of.

One possible implementation is: if the number of radio frequency units used by the network equipment for transmitting signals and the number of radio frequency units used for receiving signals are not equal, then based on the determined angle (or Phase) and the number of radio frequency units used to receive the signal to obtain the beamforming reception weight used for the subsequent signal reception. For example, if it is determined that the beamforming weight used by the subsequent transmission signal is a DFT vector, the dimension (length) expansion of the DFT vector can obtain the beamforming reception weight used by the subsequent received signal.

In the embodiment of the present invention, the network device may transmit multiple broadcast channels in each broadcast channel transmission cycle. The broadcast channel transmission period may be predetermined.

The network device periodically sends multiple broadcast channels, so that the terminal device can periodically send broadcast channel instruction messages to the network device, so that the network device The device can periodically update its beamforming weights used for sending signals and/or receiving signals according to the broadcast channel instruction message.

In the following, the signal transmission diagrams shown in FIGS. 4 to 7 will be exemplified to illustrate the method of transmitting signals between the network equipment and the terminal equipment.

As shown in Figure 4, the period of the synchronization signal is T1, and the transmission period of the broadcast channel is T2. Here it is assumed that T1=T2. A network device (such as a base station) sends four synchronization signals through frequency division multiplexing (Frequency Division Multiplexing, FDM) within a synchronization signal (Synchronous Signal, SS) time unit (such as a subframe) in a synchronization cycle SS1, SS2, SS3, and SS4, that is, these four synchronization signals occupy the same time domain resources and different frequency domain resources.

Among them, the four synchronization signals can use the same analog beamforming vector and sequence. Each synchronization signal includes a primary synchronization signal and a secondary synchronization signal.

After a period of time (such as an agreed time interval), the network device sends the physical broadcast channels (PBCH) corresponding to the synchronization signals SS1, SS2, SS3, and SS4. The network equipment sends four broadcast channels in the four time units of Time-Division Multiplexing (TDM), namely PBCH1, PBCH2, PBCH3, and PBCH4. The broadcast channels sent for the four times can carry the same information. Yes, the time-frequency resources occupied within the time unit are also the same, but different analog beamforming weights are used.

At the receiving end, the terminal device first detects the synchronization signal, uses different beamforming reception weights on different frequency domain resources to receive the four synchronization signals, and measures the reception quality of the four synchronization signals respectively. For example, suppose the terminal device has 16 connections For the receiving antenna, 4 DFT vectors with a length of 16 can be used to receive the synchronization signal. The terminal device uses the beamforming reception weight corresponding to the synchronization signal with the best reception quality as the beamforming reception weight for subsequent reception of the corresponding broadcast channel and other downlink signals.

Next, the terminal equipment respectively detects the four broadcast channels corresponding to the synchronization signal, and determines the broadcast channel with the best reception quality by measuring the received power, and indexes the corresponding broadcast channel (2 bits, corresponding to 4 broadcast channels) Report to network equipment through Physical Random Access Channel (PRACH).

The terminal equipment can use the same method to detect the synchronization signal in each synchronization signal cycle, and update the beamforming reception weight.

The method of signal transmission between network equipment and terminal equipment shown in Figure 5 is different from the method of signal transmission between network equipment and terminal equipment shown in Figure 4 in that the broadcast channel corresponding to the synchronization signal Instead of occupying different time domain resources, but occupying different frequency domain resources. At this time, the terminal device needs to detect corresponding broadcast channels on different frequency bands.

2T1。 Figure 6 is another schematic diagram of a method of transmitting signals between network equipment and terminal equipment. Among them, the period of the synchronization signal is T1, the period of the corresponding broadcast channel is T2, and T2

2T1.

The network device transmits the main synchronization signal in a synchronization signal (SS) time unit (such as a subframe) in a synchronization period. Among them, the network equipment sends four main synchronization signals through FDM, which are PSS1, PSS2, PSS3 and PSS4, That is, PSS1, PSS2, PSS3, and PSS4 occupy the same time domain resources and different frequency domain resources. PSS1, PSS2, PSS3, and PSS4 can use the same hybrid beamforming vector and sequence.

Then, the network device sends a secondary synchronization signal (SSS) on the physical resource after a period of time, and the secondary synchronization signal is only sent once.

Next, after a period of time, the network device sends the broadcast channels corresponding to PSS1, PSS2, PSS3, and PSS4. The network equipment sends TDM four broadcast channels in four time units, respectively, PBCH1, PBCH2, PBCH3, and PBCH4. The messages carried by PBCH1, PBCH2, PBCH3, and PBCH4 are the same, and the time-frequency resources occupied within the time unit are also the same, but different analog beamforming weights are used.

At the receiving end, the terminal device first detects the synchronization signal. The terminal equipment uses different beamforming reception weights on different frequency domain resources to receive the four main synchronization signals, and respectively measure the reception quality of the four main synchronization signals. The beamforming reception weight corresponding to the primary synchronization signal with the best reception quality is used as the beamforming reception weight for the subsequent reception of the secondary synchronization signal and the corresponding broadcast channel of the synchronization signal, as well as other downstream signals.

2T1，因此終端設備需要接收至少兩個同步週期的同步訊號，再檢測對應的廣播頻道。 After detecting the secondary synchronization signal, the terminal device detects the four broadcast channels corresponding to the synchronization signal. As T2

2T1, so the terminal equipment needs to receive at least two synchronization cycles of synchronization signals, and then detect the corresponding broadcast channel.

The method of signal transmission between network equipment and terminal equipment shown in Figure 7 is different from the method of signal transmission between network equipment and terminal equipment shown in Figure 6 The difference is that the main synchronization signal does not occupy different frequency domain resources, but different time domain resources (time units). Therefore, the terminal device needs to detect the corresponding master synchronization signal in different time units.

The structure of the network device and the terminal device according to the embodiment of the present invention will be schematically introduced below in conjunction with FIG. 8 to FIG. 13.

Figure 8 is a schematic structural diagram of a network device 800 according to an embodiment of the present invention. The network device 800 in Fig. 8 can implement the various steps performed by the network device in Figs. 2 to 7, and in order to avoid repetition, the detailed description is omitted here. The network device 800 includes a first sending module 810 and a second sending module 820.

The first sending module 810 is used to send multiple synchronization signals in one synchronization signal cycle.

The second sending module 820 is configured to send a broadcast channel corresponding to the plurality of synchronization signals after sending the plurality of synchronization signals, or send other signals other than the corresponding broadcast channel.

In the embodiment of the present invention, the network device sends multiple synchronization signals in one synchronization signal period, so that the terminal device can detect the subsequent signals or broadcast channels sent by the network device based on the multiple synchronization signals in one synchronization signal period, so that Shorten the time for terminal equipment to detect signals or broadcast channels, thereby improving the performance of terminal equipment to detect signals.

Optionally, as an embodiment, the multiple synchronization signals use the same sequence.

Optionally, as an embodiment, the first sending module specifically It is used to send multiple synchronization signals with the same beamforming transmission weight in one synchronization signal cycle.

Optionally, as an embodiment, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length.

Optionally, as an embodiment, the transmission parameters of the multiple synchronization signals are transmission parameters agreed in advance by the network device and the terminal device, or the transmission parameters of the multiple synchronization signals are the transmission parameters of the network The device determines the transmission parameters according to the information carried by part of the synchronization signals among the plurality of synchronization signals.

Optionally, as an embodiment, at least one of the following transmission parameters of the corresponding broadcast channel is determined by the network device according to the information carried by the multiple synchronization signals: frequency domain resources, time domain resources, information plus Scrambling method, subcarrier interval or data transmission time length; the second sending module is specifically configured to send the corresponding broadcast channel according to the determined transmission parameter after sending the multiple synchronization signals.

Optionally, as an embodiment, the second sending module 820 is specifically configured to send multiple broadcast channels corresponding to the multiple synchronization signals after sending the multiple synchronization signals, where the multiple Two broadcast channels carry the same message.

Optionally, as an embodiment, the second sending module is specifically configured to use different beamforming transmission weights after sending the multiple synchronization signals to send multiple synchronization signals corresponding to the multiple synchronization signals. Broadcast channel.

Optionally, as an embodiment, the corresponding broadcast channel is For multiple broadcast channels, at least one of the following transmission parameters of the multiple broadcast channels is different: HARQ redundancy version, frequency domain resource, time domain resource, message scrambling method, subcarrier interval, or data transmission time length.

Optionally, as an embodiment, when the corresponding broadcast channel is a plurality of broadcast channels, the network device further includes a receiving module for receiving a broadcast channel indication message sent by the terminal device, and the broadcast channel The channel indication message is used to indicate the first broadcast channel of the plurality of broadcast channels.

Optionally, as an embodiment, the network device further includes a first determining module, configured to determine the network device according to the beamforming transmission weight used to transmit the first broadcast channel, and then transmit The first beamforming transmission weight used by the broadcast channel.

Optionally, as an embodiment, the first determining module is specifically configured to determine the beamforming transmission weight used for transmitting the first broadcast channel as the first beamforming transmission weight.

Optionally, as an embodiment, the network device further includes a second determining module, configured to determine the beamforming transmission weight used by the network device to transmit the first broadcast channel The first beamforming reception weight used by the network device to receive the signal sent by the terminal device later.

Optionally, as an embodiment, the receiving module is specifically configured to receive the broadcast channel indication message sent by the terminal device through a control channel or a random access channel.

Optionally, as an embodiment, the multiple broadcast channels carry The same MIB message.

Optionally, as an embodiment, the physical resource used by the synchronization signal sent multiple times and the physical resource used by the corresponding broadcast channel have a predefined mapping relationship.

Optionally, as an embodiment, the corresponding broadcast channel is a physical broadcast channel used to transmit MIB.

Figure 9 is a schematic structural diagram of a terminal device 900 according to an embodiment of the present invention. The terminal device 900 in Fig. 9 can implement the steps performed by the terminal device in Figs. 2 to 7, and in order to avoid repetition, the detailed description is omitted here. The terminal device 900 includes a first detection module 910 and a second detection module 920.

The first detection module 910 is used to detect multiple synchronization signals sent by a network device in a synchronization signal cycle.

The second detection module 920 is configured to detect the broadcast channel sent by the network device corresponding to the plurality of synchronization signals according to the plurality of synchronization signals detected, or detect the broadcast channel sent by the network device Signals other than the corresponding broadcast channel.

In the embodiment of the present invention, since the terminal device detects multiple synchronization signals sent by the network device in a synchronization signal period, the terminal device can detect subsequent transmissions by the network device based on multiple synchronization signals in a synchronization signal period. The signal or broadcast channel can shorten the time for the terminal device to detect the subsequent signal or broadcast channel, thereby improving the performance of the terminal device to detect the signal.

Optionally, as an embodiment, the multiple synchronization signals adopt The same sequence.

Optionally, as an embodiment, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length.

Optionally, as an embodiment, the first detection module is specifically configured to: according to a transmission parameter pre-appointed by the network device and the terminal device, or according to partial synchronization based on the plurality of synchronization signals The transmission parameters determined by the message carried by the signal are detected, and the multiple synchronization signals are detected.

Optionally, as an embodiment, the second detection module is specifically configured to determine at least one of the following transmission parameters of the corresponding broadcast channel according to the information carried by the detected multiple synchronization signals: Domain resource, time domain resource, message scrambling method, subcarrier interval or data transmission time length; detecting the corresponding broadcast channel according to the determined transmission parameter.

Optionally, as an embodiment, the first detection module is specifically configured to use different beamforming reception weights to detect the multiple synchronization signals; the second detection module is specifically configured to detect the multiple synchronization signals according to The beamforming reception weight used by the first synchronization signal among the plurality of synchronization signals is used to determine the first beamforming reception weight of the terminal device; the first beamforming reception weight is used to detect the Other signals or detect the corresponding broadcast channel.

Optionally, as an embodiment, the first synchronization signal is a synchronization signal with the best reception quality among the plurality of synchronization signals detected by the terminal device.

Optionally, as an embodiment, the terminal device further includes a determining module, configured to determine, according to the first beamforming receiving weight, the first signal that the terminal device uses to send a signal to the network device Beamforming transmission weight.

Optionally, as an embodiment, the corresponding broadcast channels are multiple broadcast channels that carry the same information.

Optionally, as an embodiment, at least one of the following transmission parameters of the multiple broadcast channels is different: HARQ redundancy version, frequency domain resource, time domain resource, message scrambling method, subcarrier interval, or data transmission time length .

Optionally, as an embodiment, when the corresponding broadcast channel detected by the terminal device is multiple broadcast channels, the terminal device further includes a sending module for sending the broadcast channel to the network device An indication message, the broadcast channel indication message is used to indicate the first broadcast channel of the plurality of broadcast channels.

Optionally, as an embodiment, the sending module is specifically configured to send the broadcast channel indication message to the network device through a control channel or a random access channel.

Optionally, as an embodiment, the first broadcast channel is a broadcast channel with the best reception quality among the multiple broadcast channels detected by the terminal device.

Optionally, as an embodiment, the physical resources used by the multiple synchronization signals and the physical resources used by the corresponding broadcast channel have a predefined mapping relationship.

Optionally, as an embodiment, the corresponding broadcast channel is The physical broadcast channel used to transmit the basic system information MIB.

Figure 10 shows a schematic block diagram of a network device 1000 according to an embodiment of the present invention. It should be understood that the network device 1000 in FIG. 10 can execute the steps performed by the network device in FIG. 2 to FIG. 7. In order to avoid repetition, the details will not be described here. The network device 1000 includes a storage 1010, a processor 1020, a receiver 1030, and a transmitter 1040.

The memory 1010 is used to store programs.

The processor 1020 is used to execute the programs in the storage 1010. When the program is executed, the processor 1020 is specifically configured to call the transmitter 1040 to send multiple synchronization signals in one synchronization signal cycle.

The processor 1020 is further configured to call the transmitter 1040 to send a broadcast channel corresponding to the plurality of synchronization signals after sending the plurality of synchronization signals, or to send other signals other than the corresponding broadcast channel.

In the embodiment of the present invention, the network device sends multiple synchronization signals in one synchronization signal period, so that the terminal device can detect the subsequent signals or broadcast channels sent by the network device based on the multiple synchronization signals in one synchronization signal period, so that Shorten the time for terminal equipment to detect signals or broadcast channels, thereby improving the performance of terminal equipment to detect signals.

Optionally, as an embodiment, the multiple synchronization signals use the same sequence.

Optionally, as an embodiment, the transmitter 1040 is specifically configured to use the same beamforming transmission weight and transmit Multiple synchronization signals.

Optionally, as an embodiment, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length.

Optionally, as an embodiment, the transmission parameters of the multiple synchronization signals are transmission parameters agreed in advance by the network device and the terminal device, or the transmission parameters of the multiple synchronization signals are the transmission parameters of the network The device determines the transmission parameters according to the information carried by part of the synchronization signals among the plurality of synchronization signals.

Optionally, as an embodiment, at least one of the following transmission parameters of the corresponding broadcast channel is determined by the network device according to the information carried by the multiple synchronization signals: frequency domain resources, time domain resources, information plus Scrambling method, subcarrier interval or data transmission time length; the transmitter 1040 is specifically configured to send the corresponding broadcast channel according to the determined transmission parameter after sending the multiple synchronization signals.

Optionally, as an embodiment, the transmitter 1040 is specifically configured to send multiple broadcast channels corresponding to the multiple synchronization signals after sending the multiple synchronization signals, wherein the multiple broadcast channels Carry the same message.

Optionally, as an embodiment, the transmitter 1040 is specifically configured to use different beamforming transmission weights to transmit multiple broadcast channels corresponding to the multiple synchronization signals after sending the multiple synchronization signals .

Optionally, as an embodiment, the corresponding broadcast channels are multiple broadcast channels, and at least one of the following transmission parameters of the multiple broadcast channels are not the same: Same: HARQ redundancy version, frequency domain resources, time domain resources, message scrambling method, subcarrier interval or data transmission time length.

Optionally, as an embodiment, when the corresponding broadcast channel is multiple broadcast channels, the processor 1020 is further configured to call the receiver 1030 to receive the broadcast channel indication message sent by the terminal device, so The broadcast channel indication message is used to indicate the first broadcast channel of the plurality of broadcast channels.

Optionally, as an embodiment, the processor 1020 is further configured to determine the first beam used by the network device to transmit the broadcast channel according to the beamforming transmission weight used for transmitting the first broadcast channel Shaped emission weights.

Optionally, as an embodiment, the processor 1020 is specifically configured to determine a beamforming transmission weight used for transmitting the first broadcast channel as the first beamforming transmission weight.

Optionally, as an embodiment, the receiver 1030 is specifically configured to receive the broadcast channel indication message sent by the terminal device through a control channel or a random access channel.

Optionally, as an embodiment, the processor 1020 is further configured to determine, according to the beamforming transmission weight used by the network device to transmit the first broadcast channel, that the network device will receive the terminal device later The first beamforming reception weight used by the transmitted signal.

Optionally, as an embodiment, the physical resource used by the synchronization signal sent multiple times and the physical resource used by the corresponding broadcast channel have a predefined mapping relationship.

Optionally, as an embodiment, the corresponding broadcast channel is a physical broadcast channel used to transmit the basic system information MIB.

Figure 11 shows a schematic block diagram of a terminal device 1100 according to an embodiment of the present invention. It should be understood that the terminal device 1100 in FIG. 11 can execute the steps performed by the terminal device in FIGS. 2 to 7, and in order to avoid repetition, the details are not described herein again. The terminal device 1100 includes a storage 1110, a processor 1120, a receiver 1130, and a transmitter 1140.

The storage 1110 is used to store programs.

The processor 1120 is configured to execute the program in the storage 1110. When the program is executed, the processor 1120 calls the receiver 1130 to detect multiple synchronization signals sent by the network device in a synchronization signal cycle, And based on the plurality of synchronization signals detected, detecting the broadcast channel signal corresponding to the plurality of synchronization signals sent by the network device after the plurality of synchronization signals, or except for the corresponding broadcast channel Other signals outside.

In the embodiment of the present invention, the network device sends multiple synchronization signals in one synchronization signal period, so that the terminal device can detect the subsequent signals or broadcast channels sent by the network device based on the multiple synchronization signals in one synchronization signal period, so that Shorten the time for terminal equipment to detect signals or broadcast channels, thereby improving the performance of terminal equipment to detect signals.

Optionally, as an embodiment, the multiple synchronization signals use the same sequence.

Optionally, as an embodiment, the multiple synchronization signals are At least one of the following transmission parameters is different: frequency domain resources, time domain resources, subcarrier spacing, or data transmission time length.

Optionally, as an embodiment, the processor 1120 is specifically configured to call the receiver 1130 according to the transmission parameters pre-appointed by the network device and the terminal device, or according to the transmission parameters based on the multiple synchronization signals. The transmission parameters determined by the part of the synchronization signal carried by the message are detected, and the multiple synchronization signals are detected.

Optionally, as an embodiment, the processor 1120 is specifically configured to call the receiver 1130 to determine at least one of the following transmissions of the corresponding broadcast channel according to the information carried by the detected multiple synchronization signals Parameters: frequency domain resources, time domain resources, message scrambling method, subcarrier interval or data transmission time length; and detecting the corresponding broadcast channel according to the determined transmission parameter.

Optionally, as an embodiment, the processor 1120 is specifically configured to call the receiver 1130 to use different beamforming reception weights to detect the multiple synchronization signals; according to the detection of the multiple synchronization signals To determine the first beamforming receiving weight of the terminal device using the beamforming receiving weight of the first synchronization signal; using the first beamforming receiving weight to receive the multiple synchronization signals and then send The other signal or the corresponding broadcast channel.

Optionally, as an embodiment, the first synchronization signal is a synchronization signal with the best reception quality among the plurality of synchronization signals detected by the terminal device.

Optionally, as an embodiment, the processor 1120 is further configured to determine, according to the first beamforming reception weight, that the terminal device is used to send the information to the network The first beamforming transmission weight of the signal sent by the router.

Optionally, as an embodiment, the corresponding broadcast channels are multiple broadcast channels that carry the same information.

Optionally, as an embodiment, the corresponding broadcast channel detected by the terminal device is multiple broadcast channels, and at least one of the following transmission parameters of the multiple broadcast channels is different: HARQ redundancy version, frequency domain Resources, time domain resources, message scrambling method, subcarrier interval or data transmission time length.

Optionally, as an embodiment, when the corresponding broadcast channel detected by the terminal device is multiple broadcast channels, the processor 1120 is further configured to call the transmitter 1140 to send to the network device A broadcast channel indication message, where the broadcast channel indication message is used to indicate the first broadcast channel of the plurality of broadcast channels.

Optionally, as an embodiment, the processor 1120 is specifically configured to call the transmitter 1140 to send the broadcast channel indication message to the network device through a control channel or a random access channel.

Optionally, as an embodiment, the first broadcast channel is a broadcast channel with the best reception quality among the multiple broadcast channels detected by the terminal device.

Optionally, as an embodiment, the physical resources used by the multiple synchronization signals and the physical resources used by the corresponding broadcast channel have a predefined mapping relationship.

Optionally, as an embodiment, the corresponding broadcast channel is The physical broadcast channel used to transmit the MIB.

Fig. 12 is a schematic structural diagram of a system chip according to an embodiment of the present invention. The system chip 1200 in FIG. 12 includes an input port 1210, an output port 1220, at least one processor 1230, and a storage 1240. One of the input port 1210, the output port 1220, the processor 1230, and the storage 1240 The processor 1230 is used to execute the program code in the storage 1240. When the program code is executed, the processor 1230 realizes the network connection in Figures 2 to 7 The method implemented by the road equipment.

Fig. 13 is a schematic structural diagram of a system chip according to an embodiment of the present invention. The system chip 1300 in FIG. 13 includes an input port 1310, an output port 1320, at least one processor 1330, and a storage 1340. One of the input port 1310, output port 1320, the processor 1330, and the storage 1340 The processor 1330 is used to execute the program code in the storage 1340. When the program code is executed, the processor 1330 implements the terminal The method performed by the device.

It can be understood that the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed through hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), a special-purpose integrated circuit (Application Specific Integrated Circuit, ASIC), a Field Programmable Gate Array (Field Programmable Gate Array, FPGA) Or other programmable logic Logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present invention may be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random storage, memory, read-only storage, programmable read-only storage or erasable programmable storage, temporary storage and other mature storage media in the field. The storage medium is located in the storage, and the processor reads the information in the storage and completes the steps of the above method in combination with its hardware.

It is understood that the storage in the embodiment of the present invention may be a volatile storage or a non-volatile storage, or may include both volatile and non-volatile storages. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory ( Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the reservoirs of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of reservoirs.

In addition, the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship that describes the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

It should be understood that in the embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.

Those with ordinary knowledge in the technical field can realize that the units and algorithm steps of the examples described in the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Incorporating into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some connection ports, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, each functional unit in each embodiment of the present invention may be combined into one processing unit, or each unit may exist alone physically, or two or more units may be combined into one unit.

If the function is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the conventional technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which can be a personal computer, a server, or Network equipment, etc.) execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage media include: flash drives, portable hard drives, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc., which can store The medium of the code.

The present invention has been disclosed by the preferred embodiments as above, but it is not intended to limit the present invention. Those with ordinary knowledge in the technical field of the present invention can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

S210, S220‧‧‧Block

Claims (48)

A method for transmitting signals includes: a terminal device detects multiple synchronization signals sent by a network device in a synchronization signal cycle; the terminal device detects the multiple synchronization signals sent by the network device based on the detected multiple synchronization signals , The broadcast channel corresponding to the multiple synchronization signals, or detect other signals sent by the network device except the corresponding broadcast channel, wherein the corresponding broadcast channel is a plurality of broadcast channels carrying the same information Broadcast channel; and the method further includes: the terminal device sends a broadcast channel indication message to the network device, the broadcast channel indication message is used to indicate the first broadcast channel of the plurality of broadcast channels, the The first broadcast channel is determined according to the received power of the reference signal, and the broadcast channel indication message is sent through a random access channel. The method described in item 1 of the scope of patent application, wherein the multiple synchronization signals adopt the same sequence. According to the method described in claim 1, wherein at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length. The method described in item 1 of the scope of patent application, wherein the terminal device detects multiple synchronization signals sent by the network device in a synchronization signal cycle, including: The terminal device detects the plurality of synchronization signals according to the transmission parameters agreed in advance by the network device and the terminal device, or according to the transmission parameters determined based on the information carried by part of the synchronization signals among the plurality of synchronization signals . The method according to item 1 of the scope of patent application, wherein the terminal device detects the broadcast channel sent by the network device corresponding to the multiple synchronization signals according to the multiple synchronization signals detected, including : The terminal device determines at least one of the following transmission parameters of the corresponding broadcast channel based on the information carried by the detected multiple synchronization signals: frequency domain resources, time domain resources, message scrambling methods, and subcarrier spacing Or the length of the data transmission time; the terminal device detects the corresponding broadcast channel according to the determined transmission parameter. The method according to any one of items 1 to 4 in the scope of the patent application, wherein the terminal device detects multiple synchronization signals sent by the network device in a synchronization signal cycle, including: the terminal device uses different beamforming To detect the multiple synchronization signals; the terminal device detects the broadcast channels sent by the network device and corresponding to the multiple synchronization signals based on the multiple synchronization signals detected; or Detecting signals sent by the network device other than the corresponding broadcast channel includes: the terminal device detects the beamforming reception weight used by the first synchronization signal among the plurality of synchronization signals , Determining the first beamforming reception weight of the terminal device; The terminal device uses the first beamforming reception weight to detect the other signal or detect the corresponding broadcast channel. The method described in item 6 of the scope of patent application, wherein the first synchronization signal is the synchronization signal with the best reception quality among the plurality of synchronization signals detected by the terminal device. According to the method described in item 6 of the scope of patent application, further comprising: the terminal device determines the first beamforming used by the terminal device to send a signal to the network device according to the first beamforming receiving weight. Shape emission weight. The method described in item 1 of the scope of patent application, wherein at least one of the following transmission parameters of the multiple broadcast channels are different: Hybrid Automatic Repeat reQuest (Hybrid Automatic Repeat reQuest) redundancy version, frequency domain resources, and time domain Resource, message scrambling method, sub-carrier interval or data transmission time length. The method according to the first item of the scope of patent application, wherein the first broadcast channel is the broadcast channel with the best reception quality among the plurality of broadcast channels detected by the terminal device. According to the method described in item 1 of the scope of patent application, the physical resources used by the multiple synchronization signals have a predefined mapping relationship with the physical resources used by the corresponding broadcast channel. In the method described in item 1 of the scope of patent application, the corresponding broadcast channel is a physical broadcast channel used to transmit the basic system information MIB (Management Information Byte). A method for transmitting signals includes: a network device sends multiple synchronization signals in a synchronization signal period; and After sending the multiple synchronization signals, the network device transmits a broadcast channel corresponding to the multiple synchronization signals or other signals other than the corresponding broadcast channel, wherein the corresponding broadcast channels carry the same A plurality of broadcast channels of a message; and the method further includes: the network device receives a broadcast channel indication message sent by the terminal device, the broadcast channel indication message is used to indicate the first of the plurality of broadcast channels The broadcast channel, the first broadcast channel is determined according to the reference signal receiving power, and the broadcast channel indication message is sent through a random access channel. The method described in item 13 of the scope of patent application, wherein the multiple synchronization signals adopt the same sequence. The method described in item 13 of the scope of patent application, wherein the network device sends multiple synchronization signals in one synchronization signal cycle, including: the network device uses the same beamforming in one synchronization signal cycle Transmit weights and send multiple synchronization signals. According to the method described in item 13 of the scope of patent application, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length. The method described in item 13 of the scope of patent application, wherein the transmission parameters of the multiple synchronization signals are the transmission parameters agreed in advance by the network device and the terminal device, or the transmission parameters of the multiple synchronization signals are The network equipment The transmission parameter is determined according to the information carried by part of the synchronization signals among the plurality of synchronization signals. The method described in item 13 of the scope of the patent application further includes: the network device determines at least one of the following transmission parameters of the corresponding broadcast channel according to the information carried by the multiple synchronization signals: frequency domain resources, time domain resources , Message scrambling method, sub-carrier interval or data transmission time length; the network device sends the broadcast channel corresponding to the multiple synchronization signals after sending the multiple synchronization signals, including: the network device is in the sending station After the multiple synchronization signals, the corresponding broadcast channel is sent according to the determined transmission parameter. The method according to item 13 of the scope of patent application, wherein the network device sends multiple broadcast channels corresponding to the multiple synchronization signals after sending the multiple synchronization signals, including: the network device is After the multiple synchronization signals are sent, different beamforming transmission weights are used to send multiple broadcast channels corresponding to the multiple synchronization signals. The method described in item 13 of the scope of patent application, wherein at least one of the following transmission parameters of the multiple broadcast channels are different: automatic hybrid repeat request HARQ (Hybrid Automatic Repeat reQuest) redundancy version, frequency domain resources, time domain Resource, message scrambling method, sub-carrier interval or data transmission time length. For example, the method described in item 13 of the scope of patent application further includes: the network device determines the second beamforming transmission weight used by the network device to send signals in the future according to the beamforming transmission weight used to transmit the first broadcast channel. A beamforming transmission weight. For example, the method described in item 13 or 21 of the scope of the patent application further includes: the network device determines that the network device will receive the terminal device in the future according to the beamforming transmission weight used to transmit the first broadcast channel The first beamforming reception weight used by the transmitted signal. The method described in item 13 of the scope of patent application, wherein the physical resources used by the synchronization signal sent multiple times and the physical resources used by the corresponding broadcast channel have a predefined mapping relationship. In the method described in item 13 of the scope of patent application, the corresponding broadcast channel is a physical broadcast channel used to transmit the basic system information MIB (Management Information Byte). A terminal device includes: a first detection module for detecting a plurality of synchronization signals sent by a network device in a synchronization signal period; a second detection module for detecting the plurality of synchronization signals, Detect the broadcast channel sent by the network device and corresponding to the multiple synchronization signals, or detect other signals sent by the network device other than the corresponding broadcast channel, wherein the corresponding broadcast channel Is a plurality of broadcast channels carrying the same message; and the terminal device further includes: a sending module for sending a broadcast channel indication message to the network device, and the broadcast channel indication message is used to indicate the multiple broadcasts The first broadcast frequency in the channel The first broadcast channel is determined according to the received power of the reference signal, and the broadcast channel indication message is sent through a random access channel. In the terminal device described in item 25 of the scope of patent application, the multiple synchronization signals adopt the same sequence. For the terminal device described in item 25 of the scope of patent application, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length. For the terminal device described in item 25 of the scope of patent application, the first detection module is specifically used to: according to the transmission parameters pre-appointed by the network device and the terminal device, or according to the multiple synchronization The transmission parameters determined by the information carried by part of the synchronization signals in the signal are detected, and the multiple synchronization signals are detected. As for the terminal device described in item 25 of the scope of patent application, the second detection module is specifically configured to: according to the detected information carried by the plurality of synchronization signals, determine the following at least A transmission parameter: frequency domain resource, time domain resource, message scrambling method, subcarrier interval or data transmission time length; the corresponding broadcast channel is detected according to the determined transmission parameter. For the terminal device according to any one of items 25 to 28 in the scope of the patent application, the first detection module is specifically configured to use different beamforming receiving weights to detect the multiple synchronization signals; The second detection module is specifically configured to determine the terminal device's performance according to the beamforming reception weight used for detecting the first synchronization signal among the plurality of synchronization signals The first beamforming receiving weight; the first beamforming receiving weight is used to detect the other signal or the corresponding broadcast channel. According to the terminal device described in item 30 of the scope of patent application, the first synchronization signal is the synchronization signal with the best reception quality among the plurality of synchronization signals detected by the terminal device. For example, the terminal device described in item 30 of the scope of patent application further includes: a determining module for determining, according to the first beamforming receiving weight, the first terminal device used to send a signal to the network device A beamforming transmission weight. For the terminal device described in item 25 of the patent application, at least one of the following transmission parameters of the multiple broadcast channels are different: Hybrid Automatic Repeat reQuest (Hybrid Automatic Repeat reQuest) redundancy version, frequency domain resources, time Domain resources, message scrambling method, sub-carrier interval or data transmission time length. The terminal device according to the 25th item of the scope of patent application, wherein the first broadcast channel is the broadcast channel with the best reception quality among the plurality of broadcast channels detected by the terminal device. As for the terminal device described in item 25 of the scope of patent application, the physical resources used by the multiple synchronization signals have a predefined mapping relationship with the physical resources used by the corresponding broadcast channel. For the terminal device described in item 25 of the scope of patent application, the corresponding broadcast channel is a physical broadcast channel used to transmit the basic system information MIB (Management Information Byte). A network device including: The first sending module is used for sending multiple synchronization signals in one synchronization signal period; the second sending module is used for sending the broadcasting channels corresponding to the multiple synchronization signals after sending the multiple synchronization signals, Or send signals other than the corresponding broadcast channel, where the corresponding broadcast channel is a plurality of broadcast channels carrying the same message; and the network device further includes: a receiving module for receiving the A broadcast channel indication message sent by a terminal device, where the broadcast channel indication message is used to indicate a first broadcast channel among the plurality of broadcast channels, the first broadcast channel is determined according to the reference signal receiving power, and the broadcast channel Channel instruction messages are sent through random access channels. In the network device described in item 37 of the scope of patent application, the multiple synchronization signals use the same sequence. For the network device described in item 37 of the scope of patent application, the first sending module is specifically configured to use the same beamforming transmission weight to send multiple synchronization signals within a synchronization signal cycle. For the network device described in item 37 of the scope of patent application, at least one of the following transmission parameters of the multiple synchronization signals is different: frequency domain resources, time domain resources, subcarrier interval, or data transmission time length. The network device described in item 37 of the scope of patent application, wherein the transmission parameters of the multiple synchronization signals are the transmission parameters agreed in advance by the network device and the terminal device, or the transmission of the multiple synchronization signals The parameter is the network The device determines the transmission parameters according to the information carried by part of the synchronization signals among the plurality of synchronization signals. For the network device described in item 37 of the scope of patent application, at least one of the following transmission parameters of the corresponding broadcast channel is determined by the network device according to the information carried by the multiple synchronization signals: frequency domain resources, Time domain resources, message scrambling method, subcarrier interval, or data transmission time length; the second sending module is specifically configured to send the corresponding transmission parameters according to the determined transmission parameters after sending the multiple synchronization signals Broadcast channel. For the network device described in item 37 of the scope of the patent application, the second sending module is specifically configured to use different beamforming transmission weights to send and the plurality of synchronization signals after sending the plurality of synchronization signals. Multiple broadcast channels corresponding to the synchronization signal. For example, in the network device described in item 37 of the scope of patent application, at least one of the following transmission parameters of the multiple broadcast channels are different: automatic hybrid retransmission request HARQ (Hybrid Automatic Repeat reQuest) redundancy version, frequency domain resources, Time domain resources, message scrambling method, subcarrier interval or data transmission time length. As described in item 37 of the scope of patent application, the network equipment further includes: a first determining module for determining the network according to the beamforming transmission weight used by the network equipment to transmit the first broadcast channel The road device then sends the first beam-forming emission weight used after washing. The network equipment described in the 37th scope of the patent application also includes: The second determining module is configured to determine the first beamforming used by the network device to receive signals sent by the terminal device in the future according to the beamforming transmission weight used by the network device to send the first broadcast channel Shape receiving weight. For the network device described in item 37 of the scope of patent application, the physical resources used by the synchronization signal sent multiple times have a predefined mapping relationship with the physical resources used by the corresponding broadcast channel. For the network device described in item 37 of the scope of patent application, the corresponding broadcast channel is a physical broadcast frequency used to transmit the basic system information MIB (Management Information Byte).

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